Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Sound at the right vibration can bore holes through a solid object.
134
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Research indicates that plants grow healthier when they are stroked.
173
Sound travels fifteen times faster through steel than through air.
134